Valve-stem.



GUHUGHES D. F. GBVENS.

vALv STEM.

AAPPLICATION VFILED JULY 22, 1915.

Patemved Beal/1i, 1915.

*n l Mmmm@ GEORGE'I-IUGHES .AND I )ORWIN F. GIVENS, 0F SY RACUSE,*1\TEW YORK.

'VALVE-STEM.

. Application inea :ruly 22, 1915. 'A seria; No. 41,299.

To all whom t may concern: y Be it known that we, GEORGE HUGHES and DoRwrN F. GIvENs, citizens of, the United appertains to make and use the same.

States, residing at Syracuse, in the county f Onondaga' and State of New York, have in-V vented certain newand useful Improvements in lValve-Stems; and we do declare the following to bela full, clear,and eXact description of the invention, such as will enable others skilled inthe artlto which it This invention relates to-` the general class known as valves and relates broadly to a new and improved valve that incorporates in the valve structure means for holding the valve in openposition.

Another object of this invention is to provide a valve of this character which is applicable for use on bicycle or automobile tires and the like, where the valve may be held open by thesaidmeans to allow the free ingress and egress of airduring the infiation of the tire, where. formerly the pump 1 had to hold the valve open during the operation.,

A further object of the' invention is the provision of a valve o f this character which is simple andV durable in construction, ineX- pensive to manufacture and one which be verv eflicient in operation.

With these and numerous other objects in view our invention consists of the novel features of construction, combination 'and arrangement of parts, .which will be herein referred to and` more particularly pointed out in the, specification and claim.

Figure 1 is a central vertical section show ing the valve .in closed position; F ig. 2 is the same, showing the valve held in open posi- ,tion and a supplypipe from a pump attached thereto; and Fig. 3is a horizontal section taken on the line 3-3 of Fig. l.

In describingy our invention we shall refer to the accompanying drawings in which similar reference characters designate corresponding parts throughout the several views `and in which the numerals 1 and 2 designate a valve casing of theusual form, the lower end of the casing 2 being attached to the tire in the manner usual to devices of this character.v The two parts 1 and 2 of this casing are secured as shown at 3 in the drawing `and have spaced therein a cone- Specification qfLe'ytters Patent.

will

Patented nee. 1a, 1915.

V from thelower end of the valve 4. Spaced below the lower end of the valve 4 in the casing 1, a stem 9, which has a restricted4 upper end 10. An annular shoulder 11 is formed where the upper end of thestem 9 is restricted for a purpose to be, hereinafter more fully described..

Positioned in the upper end of the casing 1 and adjacent the top of the saine is a spider 12 having a plurality of openings 13' and .a central` aperture 14 therethrough. VA cap 15 1s adapted to be placed over the upper end of the casing when the valve is not in use for a purpose which will he obvious.

In operation when the parts of this valve are positioned as shown in Fig. 1 off'the drawing, it will be seen that the stem 9 of the valve projects upwardly through the casing and has its upper restricted end l0 Iprojecting therefrom. The valve will normally be held in vthis position by the constant upward pressure of the spring 7 bearing against its lower surface and the parts positioned as above shown. VWhen it is desired to open this valve for any reason, such as for instance, to inflate the tire, the upper end 10 of the stem 9 is depressed or pushed downwardly/until the shoulder 11 is positioned below the aperture 14 in the spider 12 in the `casing 1. The stem is then pushed radially in anyA direction, and released whereby the pressure of the coil spring 7 will force the shoulder 11 against the lower jside of the spider 12 and hold the same, consequently holding the valve in openposition.

To release the valve it is simply necessary to move the restricted -end 10 of the stem 9 into vertical alinement with the aperture 14 inthe spider whereby the shoulder 11 will be released f rom beneath the stem and the spring I7 will force the valve back to its normal closed position. The spider- 12 in the upper end-of the casing 1, as will thus he seen, acts as a stop to hold the valve y(open whenI compressed, and also as a guide for the stem lduring the opening and closing of said valve.

vvThe essential feature of this invention is the -ccact-ion .between the ystem of the I lormally actuated closed valve and the spider orstop in the top of the casing 1 to hold the valvein yopenl position, the advantage of which Yis obvious. A

Formerly when using ai valve of this character in the inflation 'of'a'tire or the like, it wasnecessary for`t-he pumpV to .overcome the pressure of the spring in the valvelto'hold the same open, but by the use of the novel means above described, the valve is held in open. position and, is easily and Simply disengaged therefrom whenthe pumping oper! ation is completed. A

- This valve is also especially adapted for use as deflat'or in case'of small punctures. Formerly when it becamenec'essary to take the vshoe otl' to change the inner vtube ofthe`t1re,

it was necessary totake the valve out, or

"hold/it down ,in rolling up the inner tube, lbut by the use of our improved valve it is only necessary to push the stem of the valve down and'move it-radi'ally to lock the same in operative position whereby when the inner tube is rolled` up, the air is free to pass out.

' 4From the--above description and explanation of thel'parts of this valve it will be seen that a valve of this character which involves .a 4feature for releasing air, which is incor porated in the'valve 6',thereby eliminates the use of a separate article toaccomplish thispurpose. f f i F1c`m-,the.-foreg oing description' of the construction of' our 'improved valve. and the manner of applying the same to use, to avehicle tire or automobile tire, forthe lilie, and

the operation thereof, it will be readilmseen that we have provided a verysimplemeans for carrying out the'objects of the invention; Wvhile we have particularly described the elements best adaptedto perform the funcyltions set forth, it is obvious that-various changes in form, proportion, and in` the minor details of construction may be. resorted to within the-scope of'the appended"- yclaim, without. departingv from or `sacrificing anyof'the principles of this invention. We claim as ourinv'ention; .Adevice ofthe character described comvalve therein, a stem'projecting from said valve through one end of the'casing `adapted for inward movement of thesame against the spring to open the valve,'said Steinberprising a tubular casing,l a longitudinally -movable* spring actuated normally closed ing smaller than the bore of the casing and f5 having an outwardly' projecting'portion re.- --60 stricted'to form a shoulder thereon adjacent its free end, and a, spider in said casing y below the shoulder on the stem having a central opening therethrough slidably engaged withthe stem, whereby when the shoulder is pushed inwardly in alinement with the inner surface of 'the spider, moved radially and then released, the shoulder of the stem.`

Witnesses:

T. O. DEERSTON, J. E. K1NGsLEVY 

